CM102-A/102S 查看數據表（PDF） - C-Media Electronics

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CM102-A/102S

USB 2CH Audio Controller for Speaker

C-Media Electronics 

CM102-A+/102S+

USB Stereo Audio Chip for Speaker Integrated

1. DESCRIPTIONS AND OVERVIEW

CM102-A+/102S+ series is a highly integrated single chip for USB stereo speakers application.

Minimum external components are needed for building an USB speaker system, which makes

CM102-A+/102S+ a simple and very cost-effective solution. Since no driver is necessary for

audio playback on all major OS. CM102-A+/102S+ provides a truly plug-and-play feature for

external digital audio playback.

For energy saving, USB suspend mode and resume is supported by CM102-A+/102S+. With

power amplifier enable pin and volume control VR input pin, a traditional speaker front panel

design can be built. This new single chip not only support 44.1KHz and 48KHz sampling rate

playback but also with X2 modulation for hi-frequency quality. Better yet, simplify anti-pop noise

solution was embedded on chip for general pop noise issues. All of the functions have been

approved by USB IF certification program. More flexible and customized design is possible with

GPIO pin, which is accessible by USB vendor specific request.

This one chip solution not only embedded USB transceiver, ADC, DAC component but also

integrated digital control power amplifier function for USB digital sound application. The Dynamic

Range Control function can support high efficiency volume output to get loudness sound effect

similar D class amplifier capability. Vender can just using single chip to saving external amplifier

component and getting a better listen experience when listen to a music source with wide

dynamic range.

Moreover, customers can use C-Media USB Audio Driver with Xear 3D functions to show up

digital speaker features and upgrade PC multi-media stereo function to be a CE like devices.

Xear 3D can support 10 band Equalizer, EnvironmentFX sound effects and virtual 7.1CH

speaker shifter. This driver is optional for free bundle.

Best USB Audio Chip for Digital Stereo Speakers Solution

Date: 09/25/2005

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Version: 1.01

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